Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334431 | Ultrasonic measuring instrument | Yukia Nakagawa, Takeo Kada, Gunzi Okawara | 1982-06-15 |
| 4271708 | Ultrasonic measuring apparatus | Yukio Nakagawa | 1981-06-09 |
| 4183244 | Ultrasonic flow rate measuring apparatus | Yukio Nakagawa, Takeo Kada | 1980-01-15 |